• Only replace those parts of the product whose replace- ment is described in this instruction manual. All other parts of the product must be replaced by your Sennheiser agent. • Protect the product from humidity. Use only a dry cloth to clean the product.
Page 3
Important safety instructions Intended use Intended use includes : • having read and this instruction manual, especially the chapter “Important safety instructions”. • using the product within the operating conditions and limitations described in this instruction manual. Improper use Improper use means using the product other than as described in this instruction manual, or under operating con- ditions which differ from those described herein.
HD 26 PRO headphones feature dynamic, closed head- phones. The noise-compensating microphone of the HMD 26-II and HMDC 26-II ensures excellent speech trans- mission even in noisy environments. The headsets have been designed for broadcast use, e.g. for outdoor broadcast or broadcast van applications.
Operation Operation Turning the microphone boom The microphone boom can be rotated, allowing the micro- phone to be worn on the left or right-hand side of the head. Putting on the headset When putting on the headset, the patented two-piece head- band adjusts automatically.
Page 7
Operation Positioning the microphone Bend the flexible microphone boom so that the microphone is placed at the corner of the mouth. Maintain a distance of 2 cm between microphone and mouth. Always use the sup- plied wind and pop screen. Do not position the microphone directly in front of your mouth as it will pick up your breathing and plosive noises from your mouth.
Page 8
Operation Flipping away one ear cup The headset’s “flip-away” ear cup can be flipped backwards by approx. 45°, allowing for singled-sided listening. approx. 45° Connecting the HD 26 PRO headphones to the audio system If necessary, screw the screw-on adapter for ¼“ (6.3 mm) jack plug onto the 3.5 mm jack plug.
Page 9
Operation Adjusting the volume on the audio system Connect the headset to the corresponding sockets of your audio system. Adjust the volume directly on the audio system. CAUTION Hearing damage due to high volumes! This headset is capable of producing high sound pressure levels.
Page 10
Operation Switching ActiveGard on and off (HME 26-II/HMD 26-II/HD 26 PRO) ActiveGard™ safeguards your ears from volume peaks above 105 dB, which can be transmitted via the audio system or radio equipment. Slide the switch for the ActiveGard function to the desired...
Page 11
Operation Control unit for HMDC 26-II in conjunction with cable -B-7 NoiseGard ON/OFF switch Switching NoiseGard on and off (HMDC 26-II) The NoiseGard ON/OFF switch allows you to switch the NoiseGard active noise compensation on or off. With Noise- Gard switched off, the headset can be used as a conventional headset.
Page 12
Operation Powering NoiseGard via two (rechargeable) batteries Insert two 1.5 V AA alkaline batteries (IEC LR 6) or two 1.2 V AA rechargeable batteries (IEC LR 6). Observe correct polarity when inserting the batteries. The operating time with batteries/rechargeable batteries is approx.
Care and maintenance Care and maintenance Cleaning and maintaining the headset CAUTION Liquids can damage the product! Liquids entering the product can short-circuit the electronics or damage the mechanics. Solvents or cleansing agents can damage the surface of the product. Keep all liquids far away from the product.
Page 14
Care and maintenance Replacing the headband paddings For reasons of hygiene, you should replace the headband paddings at least once annually. Pull the Ziploc type fastening strips of the old headband paddings apart. Put the new headband paddings around the headbands. Attach the new headband paddings by joining the fasten- ings strips.
Page 15
Care and maintenance Cleaning the sound inlet basket Carefully pull the sound inlet basket from the capsule. Moisten a small brush (bristle brush or toothbrush) with isopropyl alcohol. Carefully brush off the sound inlet basket. Allow the sound inlet basket to air dry for approx.
Accessories and spare parts Accessories and spare parts By changing the cable, you can simply retrofit your headset (see “Product variants“ on page 17). Accessories • Cable -6 Cat. No. 500836 • Cable -7 Cat. No. 502360 • Cable II-8 Cat.
Page 17
Accessories and spare parts Spare parts • Ear pads, leatherette, 1 pair • Ear pads, leatherette, 100 pairs • Ear pads, velour, 1 pair (not suitable for the HMDC 26-II) • Headband padding, large • Headband paddings, small, 1 pair •...
505776 026-EA-999- Copper cable with X3K1 0E3C dynamic mic XLR-3 connector and ¼“ (6.3 mm) jack plug 600 Ω per system, HMD 26-II-600-8 505774 026-EA-999- Copper cable with 0C3C dynamic mic open ends 600 Ω, single-sided, 26-II-600S* 505775 026-FA –...
Audio Hi left Audio Hi right Audio Lo left Audio Lo right not assigned Microphone Hi Microphone Lo Screen Cable -6 (HMD 26-II/HME 26-II) white Audio Hi left orange Audio Hi right brown Audio Lo left green Audio Lo right...
Page 20
Audio Lo left green Audio Lo right Microphone Hi blue Microphone Lo Screen Screen Cable II-X4F/cable -H-X4F (HMD 26-II/HME 26-II) Solder side Microphone Lo Microphone Hi Audio Lo Audio Hi Cable II-X5/cable -H-X5 (HMD 26-II/HME 26-II) Solder side Microphone Lo...
Page 21
Audio Lo left blue Audio Lo right Microphone Hi blue Microphone Lo Screen Screen Cable II-X3K1/cable -H-X3K1 (HMD 26-II/HME 26-II) XLR-3 connector ¼" (6.3 mm) jack plug 1 2 3 Solder side Solder side Screen Audio Hi left Microphone Hi...
Accessories and spare parts Headphone cable 26 PRO/headphone connector Headphone connector 3.5 mm jack plug 1 2 3 blue/black Ground yellow yellow Audio Hi right 3 red Audio Hi left blue black...
HMD 26-II-600S: 600 Ω mono HMD 26-II-100: 50 Ω mono/100 Ω stereo Characteristic SPL 105 dB SPL at 1 kHz, 1 mW HMD 26-II-600/-600S: 107 dB SPL at 1 kHz, 1 V HMD 26-II-100: 115 dB SPL at 1 kHz, 1 V Max. SPL...
Page 24
Specifications HMDC 26-II-600 Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20 to 18,000 Hz 600 Ω mono/1200 Ω stereo Impedance Characteristic SPL 108 dB SPL at 1 kHz, 1 mW 110 dB SPL at 1 kHz, 1 V Max.
Page 25
Specifications HME 26-II-600/-100 Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20 to 18,000 Hz HME 26-II-600: 300 Ω mono/600 Ω stereo Impedance HME 26-II-100: 50 Ω mono/100 Ω stereo Characteristic SPL 105 dB SPL at 1 kHz, 1 mW HME 26-II-600: 107 dB SPL at 1 kHz, 1 V HME 26-II-100: 115 dB SPL at 1 kHz, 1 V Max.
Page 26
Specifications HME 26-II-600(4)/-100(4)-P48* Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20 to 18,000 Hz HME 26-II-600(4): 300 Ω mono/600 Ω stereo Impedance HME 26-II-100(4)-P48: 50 Ω mono/100 Ω stereo Characteristic SPL 105 dB SPL at 1 kHz, 1 mW HME 26-II-600(4): 107 dB SPL at 1 kHz, 1 V HME 26-II-100(4)-P48: 115 dB SPL at 1 kHz, 1 V Max.
Page 27
Specifications HD 26 PRO Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20 to 18,000 Hz 100 Ω stereo Impedance Characteristic SPL 105 dB SPL at 1 kHz, 1 mW 115 dB SPL at 1 kHz, 1 V Max.
Manufacturer Declarations Manufacturer Declarations Warranty Sennheiser electronic GmbH & Co. KG gives a warranty of 2 years on this product. For the current warranty conditions, please visit our website at www.sennheiser-aviation.com or www.sennheiser.com or contact your Sennheiser partner. CE Declaration of Conformity •...
Page 29
• Consult the dealer or an experienced radio/ TV technician for help. Changes or modifications made to this equipment not expressly approved by Sennheiser electronic Corp. may void FCC authorization to operate this equipment.
Page 30
Manufacturer Declarations China RoHS Parts Pb Hg Cd PBDE EFUP Metal Parts Circuit Modules Cables & Cable Assemblies Circuit Breakers Battery...
Page 31
Sennheiser electronic GmbH & Co. KG Am Labor 1, 30900 Wedemark, Germany www.sennheiser.com Publ. 06/13, 552002/A02...